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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    <script>
        // const 定义常量 一般使用大写
        // const URL = "baidu.com";
        // //URL = "hdcms";
        // function show(){
        //     const URL = "bilibili.com";
        //     console.log(URL)
        // }
        // show();
        const CONFIG = {};
        CONFIG.URL = "HOUDUNREN.COM";
        console.log(CONFIG);
    </script>
</body>

</html>